Send a message to the other party, and the other party keeps turning off. Two days later, the message on the mobile phone was not sent to XXX. What does this mean?

You can receive the message, but you can't send it, because you replied to the message in the SMS settings and ticked it.

SMS reply means that if the message you sent is received successfully, the other party will send you a message saying that it has been sent successfully.

This is to judge whether the short message was sent successfully according to whether the other party received the short message.

You (the short message sender) can't decide whether the short message is sent successfully or not.

You said you received it in two days and couldn't send it. You must reissue it.

Why two days? Some mobile phones have room to adjust this function, which seems to be up to one week.

It seems that none of the Android phones have this function now.

Then they make sure that the message is sent successfully by successfully sending short messages. Whether the other party receives it or not, it doesn't matter, and it will be charged as usual.

That is to say, the division of responsibilities between domestic e-commerce and foreign e-commerce is quite similar.